Test your pressure
Best for "is it actually high?"
- Gauge-tested at the hose bib
- Find your real psi
- An honest read before any work
Pressure reducing valve service protect your home from high pressure
Too much water pressure quietly wears out your faucets, water heater and pipes, and can void appliance warranties. A pressure reducing valve (PRV) brings incoming pressure down to a safe range. We test, install and replace PRVs across Sonoma County.
- 4.9 from 114 Google reviews
- Make‑It‑Right Guarantee
- Diagnostics from $99
- Same-day often available
Signs your pressure is too high
Pick the closest match. Each one tells you what it usually means and what to do next.
Banging or hammering pipes
Water hammer: a loud knock when a faucet or valve shuts off.
See your optionsFaucets and fixtures wearing out fast
High pressure chews through washers, cartridges and fill valves.
See your optionsLeaking or running fixtures
Faucets that drip and toilets that run as pressure forces past worn seals.
See your optionsWater heater relief valve dripping
Often the first thing high pressure pushes past.
Schedule a pressure checkRattling or vibrating pipes
Pipes that shake or rattle when the water is running.
See your optionsPressure that feels harsh
Anything over about 80 psi is too high, and code requires a fix.
See your options
Pressure low instead of high? That's a different set of causes. See water line repair and our guide to why water pressure drops in summer.
Reviews
Pressure valve work, in our neighbors' words
“I have an old family cabin on the Russian River. It’s remote and difficult to access via a trail. Simione Plumbing has always come through even though the place is a challenge. …”
“Right on time. Abel found the leak, and made a quick and complete repair. This job included replacing a gate valve with a ball valve.”
“They have bailed me out more than once. I live on a well and lost all water from my house. I could not get the pump going again myself. I called them at 7:30 AM and they had the issue fixed before noon that same day. …”
Measure first
Three ways we handle pressure
First we measure, then we right-size the valve to your home. No guesswork, no oversized fix.
Financing available. Qualifying projects can be financed through Synchrony. Ask about it when you request an estimate.
Why pressure runs high here
Hills, pressure zones and aging valves
Municipal pressure runs high in parts of Sonoma County to serve hillside homes, so houses that sit low in a pressure zone can run well above the 80 psi California code allows. And many homes built before 2000 in Healdsburg, Sebastopol and Santa Rosa are past their original PRV's service life.
- PRVs last 10 to 15 years on average, sometimes up to 20
- Moderately hard water shortens that, as minerals build up inside the valve
- In gravity-fed districts like Forestville, the regulator on your side of the meter is your responsibility
Everything we do
Pressure valve work, end to end
Test and diagnose
Pressure testing at the meter or hose bib, water-hammer diagnosis, thermal-expansion checks and relief-valve issues, so we treat the real cause.
- Pressure testing
- Water-hammer diagnosis
- Thermal expansion checks
- Relief-valve issues
- Calibrated gauge reads
Install and replace
New pressure reducing valves, failed-PRV replacement, expansion tanks where required, and re-setting pressure to a safe range, installed to code.
- PRV installation
- PRV replacement
- Expansion tanks
- Pressure re-set
- Code-compliant installs
How it works
From harsh pressure to dialed-in
We measure it
We gauge your actual pressure so we're fixing a real problem, not guessing.
Fixed price first
One price before we start, with no hourly clock.
Set and tested
We install or replace the PRV, set it to a safe range, and confirm it holds.
Backed by our guarantee
Upfront fixed pricing and our Make‑It‑Right Guarantee on workmanship.
Set to a safe range
The right pressure protects everything downstream
High water pressure is one of the most overlooked causes of plumbing failures. We set every PRV to a safe range, install to code, and back the work with our Make‑It‑Right Guarantee. Serving Sonoma County since 2007.
- Pressure measured, not guessed
- Valve sized to your home
- Installed to code with expansion control
- Tested and set before we leave
- Licensed: CA C-36 #890196
Ways to save on pressure valve service
Mention the code when you call, or add it to the notes when you book online.
Seniors 65 and older
10% off
Senior discount up to $250, any service.
For neighbors 65 and older. Mention the code when you book.
Residential only. One per household. Specials cannot be combined with each other or with any other discount.
Pressure and PRV questions, answered straight
What pressure should my house be at?
Most homes should sit around 50 to 70 psi. Above about 80 psi, code requires a pressure reducing valve to protect your plumbing.
How do I know if my pressure is too high?
Banging pipes, fixtures wearing out fast, or a dripping water heater relief valve are common signs. We confirm it with a gauge.
Do I really need a PRV?
If your incoming pressure is above 80 psi, or you don't have a working regulator, yes. We test first and tell you straight.
Can high pressure damage my water heater?
Yes. It pushes past the relief valve and stresses your water heater tank. A PRV, often with an expansion tank, protects it.
How long does a pressure reducing valve last?
Most last 10 to 15 years, and some last up to 20 with good water quality. Sonoma County's moderately hard water tends to shorten that. If your home is over fifteen years old and the PRV has never been replaced, it's a likely suspect.
Can I adjust my PRV myself?
Most PRVs adjust with a lock nut and a screw on top, but it's easy to misread the pressure or damage a valve that's already worn. We confirm the reading with a calibrated gauge and check the valve before any adjustment.
Do I need an expansion tank too?
Often. We check for thermal expansion during the visit, install an expansion tank where required, and include it in your fixed price.
How much does PRV service cost?
Diagnostics start at $99, and you get a fixed price for the valve work before anything begins, with no hourly clock.
Banging pipes or pressure too strong? Let's dial it in.
Same-day appointments are often available across Sonoma County. Book online in about a minute, or call us.